factordbrpc · fdb
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Enter a value, an expression, or a term with a variable like 10^n+1 to list a range. Switch to Database id to look a number up by its stored id. Reading never stores anything; use Create to add a number to the database. See the expression syntax & functions reference.

P · Proven prime
id #1100000009047455213 566 digits created 2026-08-05

Value

20509302975837766309761981260195136136308070474555096510160911631207353786244131062265356031035453758860607503111241941315954638064142986666685625131536951298702363537715468454930129160182121591785917726573680962392030317452807309477960080696858135319732219158695382669983230284320494773651452811702841085483484148169376116958844410665354556735861075121299622010371169353440540800312799259370436070390083382001675853020346228772676411169358530523818053883335851660068755335628625097018533365801762432685085754647206635305302191227932138277311540988042185324641669407
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 75 of the certificate chain of a 1,457-digit prime (118 intermediate primes).

Certified number1,457-digit prime
Certificatedownload
Certificate chainshow step 75 of 118

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009047455213 --detail 2 --decimal
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"id":1100000009047455213},"decimal":true,"detail":2}}'